1856-1904 in Berseba, Gobabis, Warmbad, 1881-1904 Tulbagh, Saron, Sarepta; letters and diary reports, ward and school reports, 1856-1904; private letters to d. Inspectors, 1890-1900; Letters of the Daughters, 1904-1905; Obituary for Mrs. Julie Weber, née Schäfer, 1904;

30 letters to his wife Martha Pönnighaus from the years 1932-1937

1865-1905 in Spektakle, Pella, Concordia, Keetmanshoop, Berseba, missionary from 1905; curriculum vitae, 1858; letters and travelogues (partly with additions by Johann Georg Krönlein), annual reports, visitation reports, conference reports, 1865-1905; request of the. Federal Foreign Office Berlin for awarding the Order to Carl Ludwig Hermann Hegner, 1906; letters from his retirement, 1907-1913; correspondence with Ms. Zimmermann, née Hegner 1955

Contains: Letters to his wife; his daughters; Go. Rat Reinke; Gen. Maj. Helfritz; Geh. Rat Penck; Geh. Rat Schiemann; Geh. Rat Körte; Col. Wachs; State Secretary v. Lindequist; Prof. Dr. Fritz Wilke; Fürst Salm-Reifferscheidt; Gen. d. Kv. v. Kleist